Design of signal delay system for vulnerable pedestrians based on IoT

Abstract

With the development of traffic systems, it is becoming possible to provide services considering pedestrian safety in providing services that reflect the functional requirements of traffic flow. It is developing into an intelligent system through linkage with IoT through the 4th Industrial Revolution. This flow provides situation-specific services to drivers and pedestrians to enable a safe traffic environment. Methods/Statistical analysis: The development of IoT has been increasing in various demands in the traffic environment for the safety of walking. The IoT environment-based traffic control system can provide mobility that guarantees pedestrian safety while providing smooth traffic flow. Walking zone monitoring using the IoT device can collect information about characteristics and situations that appear to pedestrians. Through the collected information, it is possible to provide a signal delay service that guarantees a safe walking time to the pedestrian. Findings: The existing traffic system calculated the walking time considering the traffic flow, the walking speed of the general public and the characteristics of the area. This is a consideration for vulnerable pedestrians, and it only provides a long signal time. This part guarantees safety in waiting time, but it cannot guarantee safe walking in case of signal interruption in the pedestrian zone. In this paper, IoT-based signal delay system was proposed to overcome the problem of existing pedestrian signals. IoT based signal delay system can guarantee the safety in the pedestrian zone by collecting vulnerable pedestrian information through monitoring the pedestrian zone and providing vulnerable pedestrians conditional signal delay service. Improvements/Applications: IoT-based signal delay system collects pedestrian zone information using existing traffic system and IoT device. It requests signal delay service based on the collected information analysis. Based on the requested service, the signal controller provides the signaling time to the pedestrian in the pedestrian zone with the appropriate signal delay.